Electronic control system/network
US5682142A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1994 |
| Grant date | Oct 28, 1997 |
| Priority date | — |
| Expiry date | Jul 29, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B13/2462
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A network system of programmable, identification, locating, monitoring and processing fixed position (FPN) and movable tag nodes, which provides direct inter-node communication capability without a central processor. The individual nodes include microprocessor elements, pre-programmed to recognize external environmental conditions and to logically act on the basis of recognized condition parameters, and where appropriate, to communicate with other nodes for network action. Each node comprises an IC having three independent processors which share a common memory and control circuitry but with separate sets of registers. A first processor (CPU) provides media access control and communication between the nodes and includes transceiver elements for receiving and transmitting information. A second processor is the application CPU which runs code written for the particular use, as well as the overall operating system, which is provided with direct linkage to interfacing input and output, and the like, for initial processing based on environmental conditions, as preprogrammed. The third processor, a network CPU, links the applications CPU with the communication CPU, and handles network va…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.